Android ListView 多次点击项目

Question

我有一个包含多个项目的 ListView 。单击项目时，将打开一个 Activity 。但是，当我在该项目上快速单击几次时，与它相关的 Activity 将被打开多次。如何只打开项目一次？

我使用以下代码:

private OnItemClickListener newsfeedClickHandler = new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        MyObject newsfeed = adapter.getItem(position);
        onNewsfeedClick(newsfeed);
    }
};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_newsfeed, container, false);
    ...
    listView = (ListView) view.findViewById(R.id.newsfeeds);
    listView.setOnItemClickListener(newsfeedClickHandler);
    listView.setAdapter(adapter);
    ...
    return view;
}
private void onNewsfeedClick(MyObject newsfeed) {
    Intent intent = createIntent(newsfeed);
    startActivity(intent);
}

Answer 1

防止调用 ListView 项的正确方法是(显然)禁用 OnItemClickListener:

private void onNewsfeedClick(MyObject newsfeed) {
    listView.setOnItemClickListener(null);
    Intent intent = createIntent(newsfeed);
    startActivity(intent);
}

当此 Activity 再次可见时，在 onResume 重新设置监听器。

@Override
protected void onResume() {
    super.onResume();
    listView.setOnItemClickListener(newsfeedClickHandler);
}